American Business Conference (ABC)Washington-based coalition of chief executives of fast-growing, midsize American companies. Advocates public policies to promote growth, entrepreneurship, and a higher standard of living for all.

American Chamber of Commerce ExecutivesNational association of managers of local chambers of all sizes. Events, online newsletter, special interest groups, professional development, member directory.

American Independent Business AllianceHelps communities build economic vitality through maintaining local independent businesses and keep economic and political power rooted in the community. Includes a directory of alliances, articles, information about workshops, recommended reading, and a members' area.

American Rental AssociationContains industry information, advocacy issues, workforce and business development, exhibition dates and locations, and member resources.

Association for Women in ScienceWorks to achieving equity and full participation for women in science, mathematics, engineering and technology. Includes membership information, news, events, job listings, scholarship information and publications.

Biotechnology Industry OrganizationSupports companies and the field as a whole by giving legal support to get FDA approval for new products, sponsoring venture capital forums, sending public releases to the media and lobbying for legislation. Includes industry news and calendar of events.